[sdiy] 2164 tempco in VCF applications

Tristan tu at alphalink.com.au
Thu Nov 8 06:20:50 CET 2018


The Xpander and Matrix 12 tuning routines include the filter cutoff and resonance.

/Tristan

On Thu, Nov 8th, 2018 at 3:59 PM, Michael E Caloroso <mec.forumreader at gmail.com> wrote:

> "Autotune" has no effect on the VCFs for the legacy poly synths.
> 
> MC
> 
> On 11/7/18, Tom Wiltshire <tom at electricdruid.net> wrote:
> > If you’ve got memories and polyphony, you’ve probably got a “tune”
> button
> > which makes the tempco somewhat less necessary. The Prophet T8 and Xpander
> > don’t bother, for example (unless there’s a tempco resistor in there
> > somewhere I’ve not spotted).
> >
> > Tom
> >
> >> On 7 Nov 2018, at 10:55, Mattias Rickardsson <mr at analogue.org> wrote:
> >>
> >> On Wed, 7 Nov 2018 at 06:19, Michael E Caloroso
> >> <mec.forumreader at gmail.com> wrote:
> >> On 11/6/18, David G Dixon <dixon at mail.ubc.ca> wrote:
> >> > It's probably not worth all the
> >> > trouble, since filter cutoff doesn't require tempco
> >>
> >> Eh, the OBX VCF could sure benefit with tempco.
> >>
> >> Most VCFs benefits from tempco, especially in synths with memories or
> >> polyphony.
> >>
> >> I'd rather say that some *users* don't require tempco. :-)
> >>
> >> /mr
> >>
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